Wrench.



A; BRANDETTIL Patented Jan. 4,1916.

COLUMBIA PLANODRAPH CO.,WASHINC\TON, n. c.

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To all whom it mag/concern. l i 1 (a citizen of Italy, but V who has States,) .gre'siding at 1 167 Glen'woo Medina, in the county of Orleans andistate of New York, have invented certain new and useful Improvements in renches, of which :the following s a spec fication This invention-relatesto wrenches;

,One object isto provide a wrenchparticul, larly, constructed for nse in connection. With;

; nu-ts or other rectangular;shapedbodies or ith, bodies. f p

Anotherobject is "to provide a 'sim'ple; jdu f" inexpensive and effective toolembody ing means whereby it maybe used as a pipe oras a nut wrench and infwhich the pipe- Fa e,

and nut, wrench parts: doi not, interfere one with thebther in the manipulation of-the V 1 i guide21 by means of a SC'I'Wf25f having wrench. a l

" With the above andlother objects 3 the present invention consists in the combination andarrangement of parts hereinafter 1 more fully descr bed, illustratedin the ac-:

companying; drawings, v and particularly pointed out in the appended claims,

tion. 7

: Inthe drawings-:-Figure l is asideelevation of my improved wrench, the 'ha'ndle f portion, which is preferably long, being broken away. Fig. 2 is a similar viewpartly in sectionj Fig. 3 is a transverse sectional view on the line 3-3 otFig. 1'. Fig.3 is a sectional view on the llne g -g of F 1g. 1.

Referring now'more particularly to the accompanying drawings, the reference character 3 indicates a shank which is preferably'long but which may be of any 'suitable length provided at one'end with a head A,

preferably U-shaped, whose legs 5 and 6 are preferably provided with laterallygdirected fixed jaws 7 and 8, there being preferably a serrated-jaw 9 detachably to the working face of 'the fixed jawl7, by meansof a suitable fastening 10.

Connecting opposite sides of the legs 5-and1 v 6 are plates ,11 which are secured tothe legsby means of screws or other 'suitable fastenings 12-and each of which is provided with,

an opening 13 which may receive the'nnt 1e v 53p antenna" of Lettersfatentt secured gto vit; jserrated 'ij aw:

understoodthat changes maybe made in the form, proportion, size and minor: details from the spirit orfisacrithe-jaw 16 is movable the-"jaw 7' by means of the secured by means of screws cooperate with the 'detachable jaws .9 to in:v

arscrew or other suitable lfasteniMg lS prov the-detachable 17 tothe jawild A strip- 19 is secured'between thefaforeplates 11' by means of -suitablefasten said a ea es ae-e?1 16- rah-2e,1915.2.senain izssa sbrew threa'dedonjthe'shank 15 01 th e'mov able jaw 16iwhich latter alsohasdetachablyf';

17 adapted to;

sureza'firmfgripnpon a piper oth i li i drical shaped body (notshown ),there being Vided'to effect detachable -connectionfof'f I tags 20 which, withother parts bi?- the -J wrench head, provide guides Ql-and 22:b e-- tweenflthe' plates 11, the guide 21 adapted toslidablyreceivethe shank-230i the movable e j aw Qavhich:cooperates with the fiXC ljELW- 1 I when it is desiredto apply the tool'toanut or" shaped obj'ect(not shown);

This movable nntjengaging ant-24: is moved other rectangular towardlandawayfrom thefiXedr ja w 8 by} slid-111g "movements- 0f thefshank 23'l-in the" the shank 23 and which The shank 15' o'f-the' movable patt ng; ing jawlfi is not onlyslidable in the guide -22 blltlllitS rockingfmovement therein. and

toward and a w'ay' from 'aforesaid'nut '14 disposed in sa d aiming openings 13 and r0- tatably held therein by the shoulders 30.'

The shank;15'is screw threaded and the not 1 having screw threaded engagementthere with results in a'sliding movement of the shank 15 toward 'andawa'y from the whenthe'nut 1 1- is manipulated;

'Am'ember Bis slidably' connected to the 7 legs Sand 6 of the head A, embracing said legs and also the shanks 12*and 23 of the movable jaws 16. and "24, respectively. This member B adapted to rock the shank 15 pipe engaging jaw. 16. The

and 32 connected together by means ofbolts: 3.3 and-34.- which havesliding movement in I ,slots 85, and' 36; formed in the legs Sand 5, g

respectively, of othe head A. also connect-1, 1

.o 38 which are secriredjbetween 'said plates.

or other suitable 'fasten- V ofthe' movable member 13 may C01'1S1Si7 'Of twoaplates '31 ing'the' plates 31 and"32 are strips 37 and Immediately upon releasing the pipe engag hold the shank 15 of the pipe engaging jaw 16 normally in an inclined position and this inclined position of the shank 15 may be maintained during manipulation of the nut 14. When a pipe slightly larger than the space between the pipe engaging jaws 7 and 116 is thus engaged the slidable member B is caused to slide and force the free end of the yieldable element 4L0 toward the leg 5 and the yieldable engagement between the yield able element 410 and the strip 38 insures firm gripping action between the jaws 7 and 16.

ing jaws 7 and 16 from the pipe or similar object the yieldable element 40 slides the member B transversely of the head A and thereby causes the shank 15 of the jaw 16 to assume its normal inclined position. From the foregoing it will be seen that I provide a wrench capable of effective use for the tightening or loosening of nuts or for the manipulation of pipe or other cylin drical shaped bodies. I

,ld hat is claimed is:

1. In a wrench, a head having a recess and provided with a shank and a fixed jaw, a movable jaw cooperating with said fixed jaw v and provided with a shank having slidable and rocking movement in said re cess of the head, spaced plates mounted for transverse sliding movement on opposite sides of the head, strips located in the recess of the head, and at opposite ends conment and thereby hold the shank of the movable jaw normally in tilted position against rocking movement.

2. Ina wrench, a headha-ving a recess and provided with a shank anda fixed jaw,

a head having alining relatively short slots therein on opposite sides of said recess, a movable aw cooperating with said fixed jaw and provided with a shank having slidable and rockingmovement in said recess of the head, plates mounted on opposite sides of the head, connections between said plates which operate in said relatively short slots in the head on opposite sides of the recess, whereby said plates may have transverse sliding movement with relation to the head, and whereby the'sliding' movements of the plates are limited by said slots, strips located in the recess of the head and at opposite ends connected to the aforesaid plates between which plates and strips the shank of the movable jaw operates, and a spring located in the recess of the head and at one end connected to the head and at its opposite end engaging one of said strips to hold said plates at one limit of their sliding movement and thereby hold the shank of the movable jaw normally in tilted position against rocking movement.

In testimony whereof I ailix my signature in presence of two witnesses.

ALBERTO BRANDETTI.

Witnesses:

Nick GALLo, JOSEPH NEs'ro.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

